Convection Fan motor was (way) noisy

Fan motor has to be removed from the rear. Since this is a (double) wall oven, the hardest part was sliding the oven out of the wall.

First, doors are removed, eight screws that hold the oven in place (along the side of the doorways) are removed. The rear panel inside the oven must be removed to expose the fan. Four screws hold that in place.
Next, slide out the oven. The fan is covered by a tin shroud which is easily removed with a nut driver. The blade of the fan (inside the oven) is held on by a reverse threaded nut which must be removed. The fan motor is mounted with three screws and has two wires plugged into it. Piece of cake.

Reverse the procedure and you're done.

The best part was that I had originally called a service guy, who was going to 'defer me to GE for the repair' because the oven had to come out of the wall!! I think I'm going into the repair business!